Pump unit



FIG. 1 is a perspective view of a pump unit;

FIG. 2 is a right side view of the pump unit;

FIG. 3 is a left side view of the pump unit;

FIG. 4 is a top plan view of the pump unit;

FIG. 5 is a front elevational view of the pump unit; and,

FIG. 6 is a rear elevational view of the pump unit.

The broken lines in the Figures are for environmental purposes only andform no part of the claimed design.

CLAIM The ornamental design for a pump unit, as shown and described.